Multi-Purpose Puller With Locking Shaft for Safe Part Removal
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Solution Overview
Problem
Existing methods for removing heavy parts from agricultural machinery, such as combine rotors, are unsafe, inefficient, and risk damage to the parts and injury to personnel due to their crude nature.
Innovation Solution
A multipurpose puller with interchangeable attachments and the ability to lock the shaft in multiple rotational positions, allowing for safer and easier removal of various agricultural equipment parts by spinning and tilting them without dropping, using mechanical devices with optional powered assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If crude methods like chains and block and tackles are used to remove heavy parts, then the equipment can be operated, but the parts risk irreparable damage and personnel risk injury and death
Solution Approach 1:
The puller is designed with interchangeable attachments that can accommodate different agricultural equipment parts such as rotors, drums, and cones. The universal base unit with various adapters allows a single device to perform multiple removal functions, reducing the need for multiple specialized tools while maintaining high safety standards through controlled, centered lifting.
2Productivity
If traditional crude methods are used, then the removal process can be performed, but it takes a lot of time and is inefficient
Solution Approach 1:
The puller incorporates pre-positioned lifting points and attachment mechanisms that are prepared in advance. The device allows for quick attachment changes and pre-configured lifting geometries, eliminating the need for time-consuming setup and alignment during the actual removal operation. This preliminary preparation significantly reduces the time required for part removal while maintaining operational simplicity.
3Manufacturing precision
If homemade tools are used to remove heavy parts, then the task can be completed, but the parts being removed risk irreparable damage
Solution Approach 1:
The puller acts as an intermediary device between the heavy part and the lifting force. It provides a controlled, centered lifting point that distributes forces evenly across the part, preventing localized stress concentrations that could cause damage. The device includes protective features and guided movement paths that ensure the part is removed without contact with surrounding structures, eliminating the risk of irreparable damage while using a relatively simple mechanical design.
Data Source
AI summary
A multipurpose puller includes a frame, the frame having at least a pair of pockets parallelly arranged with one another, a chain having a threaded link that are capable of securing the multipurpose puller to a machine part, a linear motion device that is fixed to the frame, the linear motion device being used to rotate a plate containing a bearing and a shaft forward and backward about a pin.